I just purchased a rossin, 1980's. The original owner said he did not ever know the model name, mine looks like the one on ebay right now for 2400 but mine has lesser parts. Not sure how to post a picture yet. also is there a catalog for rossin or serial number data base. i can't really find a number any place except underneath bottom bracket says 60, then 3 letters i guess that is it?? very light weight 60cm . any info would be awesome thank you all!